Design
The diaphragm accumulator consists of a welded pressure chamber on the oil side of which a connection tube is welded. The separation of the gas and the fluid is carried out by a diaphragm inserted in advance. There is a diaphragm button in the bottom of the diaphragm to prevent the diaphragm completely from destruction when the vessel is discharged. The diaphragm accumulator can be refilled by means of a gas filling screw or can be closed so that it is inseparable on the gas side. The fluid supply is available in different versions.
Replacement of the diaphragm is not possible!
Aufbau Membranspeicher-en
Designation – Example of order

 

Bezeichnung Membranspeicher

 
1: Accumulator type

MS diaphragm accumulator
2: Nominal volume (Liter)
3: Max. permissible operating pressure
4: Design

1 gas can be refilled
2 gas cannot be refilled
5: Diaphragm material

N - NBR (zulässiger Temperaturbereich - 10°C bis + 80°C)
E - ECO (Hydrin) (zulässiger Temperaturbereich - 40°C bis + 80°C)
B - IIR (Butyl) (zulässiger Temperaturbereich - 15°C bis + 80°C)
V - FKM (Viton) (zulässiger Temperaturbereich - 20°C bis + 80°C)
6: Fluid supply

shape (see table)
7: Precharge pressure

p0 (bar) at 20°C
8: Accumulator material

N - C-Stahl
R - Edelstahl (z. B. 1.4571)
T - Stahl für Temperaturen bis -40°C
R/N - Edelstahl / C-Stahl
9: Acceptance test - codes

CE Directive 2014/68/EU
Pleace for temperatures
about + 80°C consultation
Dimensions Diaphragm accumulator, welded construction
Diaphragm not exchangeable!
 Abmessungen Membranspeicher-en
Fluid supplies

 

Flüssigkeitsanschlüsse Membranspeicher-en

Technical Data Diaphragm accumulator – standard steel

0,075 – 3,50 litres / 80 – 350 bar

Typnominal
volume
litres
operating
pressure
P (bar)
perm.
pressure
ratio
P2 : P0
mass
kg
volume
flow
Q (l/min)
L
mm
D
mm
d1
mm
d
Zoll
d2
mm
SW
mm
connec-
tion
form
MS 0,0750,0752508 : 10,7359064G ½2932A2
MS 0,160,162508 : 10,93510174G ½2932A2
MS 0,250,252108 : 11,13510784G ½2932A2
MS 0,320,322108 : 11,38011693G ½2932A2
MS 0,320,323308 : 11,68011895G ½2932A2
MS 0,500,502108 : 11,880128105M33x1,5G ½2941B1
MS 0,500,503308 : 12,480136110M33x1,5G ½3441B1
MS 0,600,603304 : 12,780148110M33x1,5G ½3441B1
MS 0,750,751508 : 12,180140117M33x1,5G ½3441B1
MS 0,750,752108 : 12,880144121M33x1,5G ½3441B1
MS 0,750,753308 : 13,580148125M33x1,5G ½3441B1
MS 1,001,002108 : 13,680155136M33x1,5G ½3441B1
MS 1,001,002508 : 13,680155136M33x1,5G ½3441B1
MS 1,001,003304 : 14,280175125M33x1,5G ½3441B1
MS 1,401,401408 : 15,280178150M33x1,5G ½3441B1
MS 1,401,402108 : 15,280178150M33x1,5G ½3441B1
MS 1,401,402508 : 15,280178150M33x1,5G ½3441B1
MS 1,401,403508 : 17,580176156M33x1,5G ½3441B1
MS 2,002,001008 : 15,5140192163M33x1,5G ½3441B1
MS 2,002,002108 : 16,6140196166M33x1,5G ½3441B1
MS 2,002,002508 : 17,5140200170M33x1,5G ½3446B1
MS 2,202,00808 : 15,7140208163M33x1,5G ½3441B1
MS 2,802,802104 : 18,2140248166M33x1,5G ½3441B1
MS 2,802,802504 : 110,0140248170M45x1,5G ¾4446B1
MS 2,802,803504 : 116,8140258180M45x1,5G ¾4446B1
MS 3,503,502504 : 111,6140285170M45x1,5G ¾4446B1
MS 3,503,503504 : 118,0140295180M45x1,5G ¾4446B1

 

TEchnical Data Diaphragm accumulator – stestainless steel

0,16 – 2,80 litres / 100 – 180 bar

Typnominal
volume
ltr.
operating
pression
P (bar)
perm.
pressure
ration
P2 : P0
mass
kg
volume
flow
Q (l/min)
L
mm
D
mm
d1
mm
d
Zoll
d2
mm
SW
mm
connec-
tion
form
MS 0,160,161808 : 10,93510174G ½2932A2
MS 0,250,251608 : 11,13510784G ½2932A2
MS 0,320,321608 : 11,38011693G ½2932A2
MS 0,500,501508 : 11,780130105M33x1,5G ½2941B1
MS 0,750,751408 : 12,880145121M33x1,5G ½3441B1
MS 1,001,001508 : 13,680155136M33x1,5G ½3441B1
MS 1,401,401508 : 15,280178150M33x1,5G ½3441B1
MS 2,002,001008 : 15,5140192163M33x1,5G ½3441B1
MS 2,802,801004 : 16,0140244163M33x1,5G ½3441B1
MS 4,004,001004 : 17,5140377170M45x1,5G ½4641B1
Characteristics

Installation position: as desired
Permissible operating temperature: -10°C bis +80°C (other temperatures on request)

Charging gas: Use nitrogen only! Oxygen or compressed air means danger of explosion!
Fluids: hydraulic oil (other fluids on request)

Instructions for mounting, maintenance and repair

According to the provided operating conditions the diaphragm accumulators hould be charged at the charging pressure required in the place of installation.
When charging gas use nitrogen only! Oxygen means danger of explosion.
The diaphragm accumulators can be screwed directly on the piping. When using a fluid connection with external thread, the accumulator can be fastened in threaded holes. In case of strong vibrations the accumulator should be protected against loosening. For this we recommend the HST-clamp straps. In the vicinity of the diaphragm accumulator a discharge and shut-off valve and a safetyvalve against excess pressure have to be provided in the hydraulic system. The maintenance of the accumulator is limited to the control of the gas pressure necessary for the respective function. Furthermore, we recommend to check the tight fit of the fastening of the accumulator and the pipe connections. Repair and restoring work of the accumulator are strictly prohibited, neither mechanical machining nor welding, soldering or other heat treatment.
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